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      Launching a Java Program
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    <h1>
      Launching a Java Program
    </h1>
    
<p>The simplest way to launch a Java program is to run it using a<strong> Java 
  Application </strong> launch configuration.&nbsp;This launch configuration type 
  uses information derived from the workbench preferences and your program's Java 
  project to launch the program. </p>
    
<ol>
  <li> In the <strong>Package Explorer</strong>, select the Java compilation unit 
    or class file with the main method you want to launch. </li>
  <li>Press the <strong>Run</strong> [ <img src="../images/org.eclipse.debug.ui/etool16/run_exc.svg" width="16" height="16" alt="The Run button"> 
    ] button in the workbench toolbar or select <strong>Run &gt; Run</strong> 
    from the workbench menu bar. Alternatively, select <strong>Run As &gt; Java 
    Application</strong> in the <strong>Package Explorer</strong> pop-up menu, 
    or select <strong>Run &gt; Run As &gt; Java Application </strong>in the workbench 
    menu bar, or select <strong>Run As &gt; Java Application </strong>in the drop-down 
    menu on the <strong>Run</strong> tool bar button.</li>
  <li> Your program is now launched, and text output is shown in the <a href="../reference/views/console/ref-console_view.htm"><strong>Console 
    View</strong></a>. </li>
</ol>
    
<p>You can also launch a Java program by selecting a project instead of the compilation 
  unit or class file.&nbsp; You will be prompted to select a class from those 
  classes that define a <em>main</em> method.&nbsp; (If only one class with a 
  main method is found in the project, that class is launched as if you selected 
  it.)</p>
     <h3 class="related">Related concepts</h3>
       <a href="../concepts/concept-java-views.htm">Java views</a><br>
       <a href="../concepts/concept-java-editor.htm">Java editor</a><br>
       <a href="../concepts/cdebugger.htm">Debugger</a>
     <h3 class="related">Related tasks</h3>
       <a href="task-remotejava_launch_config.htm">Connecting to a remote VM with the Java Remote Application launcher</a><br>
       <a href="task-relaunch_program.htm">Re-launching a program</a><br>
       <a href="task-running_and_debugging.htm">Running and debugging</a><br>
       <a href="../tasks/tasks-executionArgs.htm">Setting execution arguments</a><br>
       <a href="task-stepping.htm">Stepping through the execution of a program</a>
     <h3 class="related">Related references</h3>
       <a href="../reference/views/console/ref-console_view.htm">Console View</a> <br>
       <a href="../reference/views/debug/ref-debug_view.htm">Debug view</a><br>
       <a href="../reference/views/ref-view-package-explorer.htm">Package Explorer</a>
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